shakifan_2000 also sent you a personal message:
"hola! quisiera que pusieras un link a mi club ya que es nuevo. muchas gracias"
You need to go to the address above to join, but you can first take a look by going to:http://clubs.yahoo.com/clubs/amigosdeshakira

A Yahoo! Club is a great way to bring friends, family or anyone you know together using the latest in Web technologies. Club members are able to take advantage of a club's private chat room, message boards and other features. You can also create your own free club focused on any interest, such as hobbies, families and industry associations.

Clubs are either listed or unlisted. Listed clubs are available to the public while unlisted clubs are available exclusively to those who receive invitations.

If you have no interest in joining this club, there is no need for you to do anything. You will not be enrolled as a member.